Industrials · owned by 2 fund managers
Who owns Mastec (MTZ)?
2 of the 22 fund managers we track hold Mastec, worth $680M combined as of Q2 2026. Stephen Mandel has the biggest bet at 3.4% of the portfolio.
Ownership summary
Fund manager owners
2 / 22
0 opened new positions
Combined value
$680M
At quarter-end prices
Biggest weight
3.4%
Stephen Mandel
Buyers / sellers
0 / 2
Changes in Q2 2026
Smart money take
Why it matters
When several investors with very different styles own the same company, it’s often worth a closer look. Mastec appears in 2 of our 22 portfolios.
- Largest holder: Stephen Mandel (3.4% of portfolio)
- 0 managers bought or added this quarter
- 2 managers trimmed or sold out
- 1 congressional trade disclosed recently (1 buys, 0 sells)
This is not a recommendation. Do your own research.
Fund managers who own MTZ
SEC 13F · Q2 2026| Investor | % of portfolio | Activity | Shares | Value |
|---|---|---|---|---|
| Stephen Mandel Lone Pine Capital | 3.42% | Trimmed | 1,345,157 | $560M |
| Daniel Loeb Third Point | 2.58% | Trimmed | 290,000 | $121M |
Congressional trades in MTZAll politician trades
| Member | Type | Amount | Traded | Disclosed |
|---|---|---|---|---|
| R Thomas H. Kean, Jr. House · NJ | Buy | $1,001 – $15,000 | 21 Aug 2026 | 12 Sep 2026 |
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